Unforunately, the download link in
http://www.cpatch.org/thread-6377-1-1.html is broken, so this is from
http://ftp.isu.edu.tw/pub/CPatch/patchutil/unicodeaton/unicodeaton_250.exe
via http://heartfullmoon.blogspot.se/2009/10/windows-7-unicode-250.html